救10分

young_young_123 @ 2024-06-28 12:45:09

#include<bits/stdc++.h>
using namespace std;
int n,m,ji=0;
int a[1010];
int main(){
    cin>>n>>m;
    for(int i=0;i<=n;i++){
        a[i]++;
    }
    for(int i=0;i<m;i++){
        int x,y;
        cin>>x>>y;
        for(int j=x;j<=y;j++){
            a[j]=0;
        }
    }
    for(int i=0;i<=n;i++){
        ji+=a[i];
    }
    cout<<ji;
    return 0;
}

by hongshixiaobai @ 2024-06-28 13:06:40

@young_young_123 有没有一种可能，10^4 是 10000 呢？

by Evelyn_wsx_star @ 2024-06-28 13:09:38

@young_young_123

10^4=10000，所以a开小了

by Evelyn_wsx_star @ 2024-06-28 13:11:16

#include<bits/stdc++.h>
using namespace std;
int main(){
    int a[10005]={},b,c,d,e,s=0;
    cin>>b>>c;
    for(int i=1;i<=c;i++){
        cin>>d>>e;
        for(int j=d;j<=e;j++){
            a[j]=1;
        }
    }
    for(int i=0;i<=b;i++){
        if(a[i]==0){
            s++;
        }
    }
    cout<<s;
    return 0;
}

by Evelyn_wsx_star @ 2024-06-28 13:12:56

@hongshixiaobai 是的

by Evelyn_wsx_star @ 2024-06-28 13:13:28

@xhsymwx_wsx @young_young_123